67630532140 has 24 divisors (see below), whose sum is σ = 145862608752. Its totient is φ = 26321071680.

The previous prime is 67630532131. The next prime is 67630532141. The reversal of 67630532140 is 4123503676.

67630532140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 67630532140.

It is not an unprimeable number, because it can be changed into a prime (67630532141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45695566 + ... + 45697045.

It is an arithmetic number, because the mean of its divisors is an integer number (6077608698).

Almost surely, 2^67630532140 is an apocalyptic number.

It is an amenable number.

67630532140 is an abundant number, since it is smaller than the sum of its proper divisors (78232076612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67630532140 is a wasteful number, since it uses less digits than its factorization.

67630532140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91392657 (or 91392655 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 67630532140 in words is "sixty-seven billion, six hundred thirty million, five hundred thirty-two thousand, one hundred forty".